Added (minimal) support for Mac OSX, and also made it easier to make the project without any visualizations
Added multixy-pt for parallel tempering simulations vs temperature of XY-chain models, w/ various types of disorder
Added xy-pt for parallel tempering xy simulations
Moved TDisorderXY coupling initialization from string options parsing into the TDisorderXY class
Added over-relax sweeps to TParallelTempering
Small changes to multixy-temp, mostly extra magnetization output and changed susceptibility definition to match that of Andrea